Seawater has been used to treat skin problems, sinuses and mental health issues for centuries. And the evidence largely stacks up.

While nutrient supplementation can have a role in treating certain psychiatric disorders, all kinds of nutrients should, in the first instance, be consumed as part of a balanced wholefood diet.
PROPatrick Feller/FlickrOctober 12, 2015

A growing body of research points to the detrimental effect of unhealthy diets and the protective value of healthy diets – along with select nutritional supplements as required – for maintaining and promoting mental health.